! $Id: 5522,v 5.1 1994/07/27 18:54:42 pepsa Exp $ coverpage: title_1: FOC POST-COSTAR POLARIZATION CALIBRATION proposal_for: CAL/FOC pi_fname: PHILIP pi_lname: HODGE pi_inst: SPACE TELESCOPE SCIENCE INSTITUTE pi_country: USA pi_phone: 410-516-8741 keywords_1: POLARIMETRY CALIBRATION hours_pri: 1.50 num_pri: 2 foc: X off_fname: PHILIP off_lname: HODGE off_title: DR. off_addr_1: SPACE TELESCOPE SCIENCE INSTITUTE off_city: BALTIMORE off_state: MD off_zip: 21218 off_country: USA off_phone: 516-8741 ! end of coverpage abstract: line_1: As a first priority, we intend to determine the unpolarized transmission line_2: coefficients to a relative accuracy of 0.3% in the U band using line_3: an STScI standard extended unpolarized source. As a second priority, we intend line_4: to determine the effective polarimeter position angle offset with respect to line_5: the HST axes to an accuracy of 3 degrees, using an STScI standard extended line_6: polarized source. The values of the polarized transmission coefficients will line_7: also be be determined to an accuracy of 3%, although it is not expected that line_8: these coefficients will change significantly from their pre-launch values. ! ! end of abstract general_form_proposers: lname: HODGE fname: PHILIP inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: These observations are needed to determine the unpolarized transmission line_2: coefficients in orbit to a relative accuracy of 0.3%. An STScI standard line_3: extended unpolarized (<0.15%) source (NGC5272) will be observed throught the line_4: polarizers in the v band (F410M). line_5: This requires 4x10 minute exposures. line_8: The effective polarimeter position angle offset and polarized transmission line_9: coefficients will be determined to a relative accuracy of 3% by observing an line_10: STScI standard polarized source (LK-HA-233) through the polarizers in the B band line_11: (F430W). This requires 4x25 minute exposures, and the data line_12: will be binned in 0.3"x0.3" apertures to give the required S/N. ! question: 5 section: 1 line_1: The orientation of the spacecraft must be the same for line_2: the specified exposures to enable overlay of the 3 line_3: polarized images. line_4: For the observations of NGC5272, all four images line_5: must be with the same spacecraft orientation in order line_6: to determine the shifts introduced by the polarizers. ! question: 12 section: 1 line_1: line_2: This is a continuation of an SV/FOC calibration program line_3: for the polarimeter. ! !end of general form text general_form_address: lname: HODGE fname: PHILIP category: PI inst: SPACE TELESCOPE SCIENCE INSTITUTE addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE country: USA phone: 410-516-8741 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: LK-HA-233 descr_1: G,504,J,706 pos_1: RA=22H 34M 41.01S +/- 0.1S, pos_2: DEC=+40D 40' 5.9" +/- 0.5", pos_3: PLATE-ID=01YI equinox: 2000 fluxnum_1: 1 fluxval_1: SURF(B)=18 ! targnum: 2 name_1: NGC5272 name_2: M3 descr_1: D,201,J,706 pos_1: RA=13H 42M 11.24S +/- 0.1S, pos_2: DEC=+28D 22' 31.8" +/- 0.5", equinox: 2000 fluxnum_1: 1 fluxval_1: SURF(V)=16.0 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: LK-HA-233 config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F430W num_exp: 1 time_per_exp: 1000S fluxnum_1: 1 priority: 1 param_1: PIXEL=50X25, req_1: INT ACQ FOR 2-5; req_2: CRIT OBS; req_3: CYCLE 4 / 1-5 ! linenum: 2.000 targname: LK-HA-233 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F430W num_exp: 1 time_per_exp: 1500S fluxnum_1: 1 priority: 1 req_1: GUID TOL 0.02"; req_2: SEQ 2-5 NO GAP; req_3: SAME ORIENT FOR 3-5 AS 2 ! linenum: 3.000 targname: LK-HA-233 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F430W, POL0 num_exp: 1 time_per_exp: 1500S fluxnum_1: 1 priority: 1 req_1: GUID TOL 0.02" ! linenum: 4.000 targname: LK-HA-233 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F430W, POL60 num_exp: 1 time_per_exp: 1500S fluxnum_1: 1 priority: 1 req_1: GUID TOL 0.02" ! linenum: 5.000 targname: LK-HA-233 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F430W, POL120 num_exp: 1 time_per_exp: 1500S fluxnum_1: 1 priority: 1 req_1: GUID TOL 0.02" ! linenum: 6.000 targname: NGC5272 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F410M, F2ND num_exp: 1 time_per_exp: 600S fluxnum_1: 1 priority: 1 req_1: GUID TOL 0.02"; req_2: SEQ 6-9 NO GAP; req_3: SAME ORIENT FOR 7-9 AS 6; req_4: CYCLE 4 / 6-9 ! linenum: 7.000 targname: NGC5272 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F410M, F1ND, POL0 num_exp: 1 time_per_exp: 600S fluxnum_1: 1 priority: 1 req_1: GUID TOL 0.02" ! linenum: 8.000 targname: NGC5272 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F410M, F1ND, POL60 num_exp: 1 time_per_exp: 600S fluxnum_1: 1 priority: 1 req_1: GUID TOL 0.02" ! linenum: 9.000 targname: NGC5272 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F410M, F1ND, POL120 num_exp: 1 time_per_exp: 600S fluxnum_1: 1 priority: 1 req_1: GUID TOL 0.02" ! ! end of exposure logsheet ! No scan data records found